The two triangles would make either a square or a rectangle.
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
All of them.
Originating from one vertex there are 27 triangles
11
Square pyramid
A parallelogram.
you can make a square based pyramid using 4 triangles and a 1 square
the shape that can make two smaller triangles is parallelogram.
i dont know that answer so, thats why i asked you to answer it for me
a square
Hexagon
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
All of them.
You could make a parallelogram.
Originating from one vertex there are 27 triangles
11
Square pyramid